removing lines with #

[AceAll]

Hi all,

I would like to know if there is any way to remove commented lines ('#' ) from a file without opening it. I heard that this can be acheived using sed. I am not aware of it. Please let me know.

Any help would be appreciated.

Thanks.

[RobinVossen]

I cant do SED (yet) but you might want to read:
http://www.student.northpark.edu/pem...d/sed1line.txt

This always helps me If I need something done Quickly.

[bknorr]

sed -e '/^#/d' original.txt > new.txt

will match any lines with # at beginning of line, but not if it is tabbed or spaced into the line.

 sed -e '/^ *#/d' original.txt > new2.txt

will match lines where # preceeded by any number of spaces at the beginning of the line.

I haven't yet dabbled in saving the file on the fly instead of writing a 2nd new file. Good luck!

[AceAll]

Thanks guys. That was helpful.

Best,
AceAll